EP0706177A4 - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
EP0706177A4
EP0706177A4 EP95913348A EP95913348A EP0706177A4 EP 0706177 A4 EP0706177 A4 EP 0706177A4 EP 95913348 A EP95913348 A EP 95913348A EP 95913348 A EP95913348 A EP 95913348A EP 0706177 A4 EP0706177 A4 EP 0706177A4
Authority
EP
European Patent Office
Prior art keywords
recording medium
optical recording
optical
medium
recording
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95913348A
Other languages
German (de)
French (fr)
Other versions
EP0706177B1 (en
EP0706177A1 (en
Inventor
Gentaro Ohbayashi
Hitoshi Nobumasa
Kusato Hirota
Kunihisa Nagino
Futoshi Okuyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Publication of EP0706177A1 publication Critical patent/EP0706177A1/en
Publication of EP0706177A4 publication Critical patent/EP0706177A4/en
Application granted granted Critical
Publication of EP0706177B1 publication Critical patent/EP0706177B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00454—Recording involving phase-change effects
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055—Erasing
    • G11B7/00557—Erasing involving phase-change media

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
EP95913348A 1994-03-25 1995-03-27 Optical recording medium Expired - Lifetime EP0706177B1 (en)

Applications Claiming Priority (22)

Application Number Priority Date Filing Date Title
JP5599294 1994-03-25
JP55992/94 1994-03-25
JP5599294 1994-03-25
JP19851894 1994-08-23
JP19851994 1994-08-23
JP19851894 1994-08-23
JP19851994 1994-08-23
JP198519/94 1994-08-23
JP198518/94 1994-08-23
JP20736594 1994-08-31
JP207366/94 1994-08-31
JP207365/94 1994-08-31
JP20736594 1994-08-31
JP20736694 1994-08-31
JP20736694 1994-08-31
JP272699/94 1994-11-07
JP272700/94 1994-11-07
JP27270094 1994-11-07
JP27269994 1994-11-07
JP32297394 1994-12-26
JP322973/94 1994-12-26
PCT/JP1995/000565 WO1995026550A1 (en) 1994-03-25 1995-03-27 Optical recording medium

Publications (3)

Publication Number Publication Date
EP0706177A1 EP0706177A1 (en) 1996-04-10
EP0706177A4 true EP0706177A4 (en) 1998-09-02
EP0706177B1 EP0706177B1 (en) 2002-02-20

Family

ID=27572464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95913348A Expired - Lifetime EP0706177B1 (en) 1994-03-25 1995-03-27 Optical recording medium

Country Status (4)

Country Link
EP (1) EP0706177B1 (en)
KR (1) KR960700503A (en)
HK (1) HK1008917A1 (en)
WO (1) WO1995026550A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW336317B (en) * 1996-02-28 1998-07-11 Asahi Chemical Ind Design method of phase change type recording medium and the phase change optical recording medium
US6821707B2 (en) 1996-03-11 2004-11-23 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information
JP3255051B2 (en) * 1996-12-05 2002-02-12 三菱化学株式会社 Optical information recording medium
JPH10289479A (en) * 1997-04-10 1998-10-27 Tdk Corp Optical recording medium
US6503690B1 (en) 1997-08-12 2003-01-07 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, method for producing the same, and method for recording and reproducing optical information
JPH11134720A (en) 1997-08-28 1999-05-21 Matsushita Electric Ind Co Ltd Optical information recording medium and its recording/ reproducing method
US6343062B1 (en) 1997-09-26 2002-01-29 Matsushita Electric Industrial Co., Ltd Optical disk device and optical disk for recording and reproducing high-density signals
TW448443B (en) * 1998-08-05 2001-08-01 Matsushita Electric Ind Co Ltd Optical information storage media and production method as well as the storage reproducing method and device
US7074471B2 (en) * 2003-03-27 2006-07-11 Matsushita Electric Industrial Co., Ltd. Optical information recording medium, method for producing the medium, and method and apparatus for recording information using the medium
WO2004102552A2 (en) * 2003-05-16 2004-11-25 Koninklijke Philips Electronics N.V. Optical data storage medium for write once recording

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110349A (en) * 1984-11-02 1986-05-28 Hitachi Ltd Information recording medium
JPH05159360A (en) * 1991-12-10 1993-06-25 Nec Corp Phase shift type optical disk
EP0574025A2 (en) * 1992-06-12 1993-12-15 TDK Corporation Optical recording medium and method for making same
EP0630007A1 (en) * 1993-06-17 1994-12-21 Nec Corporation Optical information-recording medium
US5652036A (en) * 1994-09-21 1997-07-29 Kabushiki Kaisha Toshiba Information recording medium and method of manufacturing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06150380A (en) * 1992-11-02 1994-05-31 Pioneer Electron Corp Optical recording medium
JPH06236578A (en) * 1993-02-12 1994-08-23 Nec Corp Optical disk

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110349A (en) * 1984-11-02 1986-05-28 Hitachi Ltd Information recording medium
JPH05159360A (en) * 1991-12-10 1993-06-25 Nec Corp Phase shift type optical disk
EP0574025A2 (en) * 1992-06-12 1993-12-15 TDK Corporation Optical recording medium and method for making same
EP0630007A1 (en) * 1993-06-17 1994-12-21 Nec Corporation Optical information-recording medium
US5652036A (en) * 1994-09-21 1997-07-29 Kabushiki Kaisha Toshiba Information recording medium and method of manufacturing the same

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 294 (P - 504) 7 October 1986 (1986-10-07) *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 563 (P - 1628) 12 October 1993 (1993-10-12) *
See also references of WO9526550A1 *

Also Published As

Publication number Publication date
EP0706177B1 (en) 2002-02-20
HK1008917A1 (en) 1999-07-30
WO1995026550A1 (en) 1995-10-05
EP0706177A1 (en) 1996-04-10
KR960700503A (en) 1996-01-20

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